Let's say I have written the following tiny .Rnw file:
\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{Sweave}
\usepackage{tikz}
\usepackage{pgf}
\begin{document}
<<>>=
sessionInfo()
@
\end{document}
I then can go to R and use sweave to translate the .Rnw file into a .tex file
Once this is done the latex interpreter can be called and because I used
\usepackage{Sweave}
Latex knows how to handle the sweave specific code tags.
When I first did this procedure I got the common error that the Sweave.sty file could
not be found. I googled and could solve the problem by typing the following command
into the Mac OS Terminal:
mkdir -p ~/Library/texmf/tex/latex
cd ~/Library/texmf/tex/latex
ln -s /Library/Frameworks/R.framework/Resources/share/texmf Sweave
What I don't understand now is how does the latex package \usepackage{Sweave}
know that it
has to look at ~/Library/texmf/tex/latex to find the symbolic link to the Sweave.sty file?
What happens if I change the following line:
ln -s /Library/Frameworks/R.framework/Resources/share/texmf Sweave
to
ln -s /Library/Frameworks/R.framework/Resources/share/texmf Sweave_Link
In the .Rnw file do I have to use then \usepackage{Sweave_Link}
?